- Merkel, F.R.,Johansen, K.L. & Kristensen, A.H.(2016) "Use of time-lapse
photography and digital image analysis to estimate breeding success of a
cliff-nesting seabird" J. Field Ornithol. 87(1):84-95
[notes]
Development of new methods for obtaining basic demographic data from
difficult-to-access breeding colonies and easily disturbed species is an
important challenge in studies of seabirds. We describe a method that can
generate data concerning annual breeding success of cliff-nesting seabirds or
other colonial birds with open nests. Our method requires only a single visit to
a colony every second or third year, and is based on the use of automated
time-lapse photography. To test our method, we used time-lapse photos to examine
the breeding success of Thick-billed Murres (Uria lomvia) in two breeding
colonies in Greenland during the years 2011, 2012, and 2014. Based on the
analysis of time-lapse photos, we found that hatching success during the 3 yr of
our study ranged from 60% to 81%, fledging success from 89% to 95%, and breeding
success from 53% to 74% (Table 1). Use of digital image analysis made it possible
to differentiate between breeding and non-breeding birds and determine if and
when breeding attempts failed or succeeded. The key to making our method a
realistic long-term monitoring technique is the use of an automated, formal
image analysis to process the thousands of photos from the time-lapse cameras
and, more specifically, to reduce a large number of photos to a manageable
number. Using our method, we needed 12–22 h per study plot, depending on the
number of breeding sites per plot (range = 47–127) and whether it was the first
or the second time the plot was analyzed, to obtain our estimates of hatching,
fledging, and breeding success. This included time for data preparation, image
analyses, visual inspections, and summarizing data in a spreadsheet. We found
that our estimates of breeding success were comparable to those obtained by
direct observation in the field. An important aspect of using time-lapse
technology is to foresee potential reasons why time-lapse cameras might stop
taking pictures, for example, equipment failure (camera, timer, or battery) or
interference by visitors (e.g., vandalism or theft). As such, thorough testing
of time-lapse systems and selecting camera locations less likely to be disturbed
are most important. We believe that use of time-lapse photography in combination
with digital image analysis to estimate breeding success can be useful for
determining the breeding success of other cliff-nesting seabirds and, more
generally, other birds that breed in colonies, especially those located in
remote areas and where direct observation may disturb birds.
http://dx.doi.org/10.1111/jofo.12143
- Noda, T., Kikuchi, D.M., Takahashi, A., Mitamura, H. & Arai, N. (2016) "Pitching
stability of diving seabirds during underwater locomotion: a comparison among
alcids and a penguin" Anim Biotelemetry 4:10
[notes]
http://dx.doi.org/10.1186/s40317-016-0102-y
- Sandvik, H., Barrett, R.T., Erikstad, K.E., Myksvoll, M., Vikebø, F., Yoccoz, N.G.,
Anker-Nilssen, T., Lorentsen, S-H., Reiertsen, T.K. Skardhamar, J., Skern-Mauritzen, M.
& Systad, G.H. (2016) "Modelled drift patterns of fish larvae link coastal
morphology to seabird colony distribution" Nature Communications 7:11599
[notes]
http://dx.doi.org/10.1038/ncomms11599
- Yamamoto, T., Kokubun, N., Kikuchi, D.M, Sato, N., Takahashi, A., Will, A.P.,
Kitaysky, A.S., & Watanuki, Y. (2016) "Differential responses of seabirds to
environmental variability over 2 years in the continental shelf and oceanic
habitats of southeastern Bering Sea" Biogeosciences 13:2405-2414
http://dx.doi.org/10.5194/bg-13-2405-2016
- Benoit-Bird, K.J., Battaile, B.C., Heppell, S.A., Hoover, B., Irons, D., Jones, N., Kuletz, K.J., Nordstrom, C.A., Paredes, R., Suryan, R.M.,
Waluk, C.M. & Trites, A.W. (2013) "Prey Patch Patterns Predict Habitat Use by Top Marine Predators with Diverse Foraging Strategies"
PLoS ONE 8(1): e53348
[notes]
http://dx.doi.org/10.1371/journal.pone.0053348
- Descamps, S. (2013) "Winter Temperature Affects the Prevalence of Ticks in
an Arctic Seabird" PLoS ONE 8(6):e65374
[notes]
http://dx.doi.org/10.1371/journal.pone.0065374
- Fort, J., Steen, H., Strøm, H., Tremblay, Y., Grønningsæter, E., Pettex, E., Porter, W.P. & Grémillet, D. (2013) "Energetic consequences of
contrasting winter migratory strategies in a sympatric Arctic seabird duet" Journal of Avian Biology 44(3):255–262
[notes]
http://dx.doi.org/10.1111/j.1600-048X.2012.00128.x
- Huffeldt N.P. & Merkel, F.R. (2013) "Remote Time-lapse Photography as a
Monitoring Tool for Colonial Breeding Seabirds: A Case Study Using Thick-billed
Murres (Uria lomvia)" Waterbirds 36(3):330-341
http://dx.doi.org/10.1675/063.036.0310
- Jacobs, S.R., Elliott, K.H. & Gaston, A.J. (2013) "Parents are a Drag:
Long-Lived Birds Share the Cost of Increased Foraging Effort with Their
Offspring, but Males Pass on More of the Costs than Females" PLoS ONE
8(1): e54594
[notes]
http://dx.doi.org/10.1371/journal.pone.0054594
- Linnebjerg, J.F., Fort, J., Guilford, T., Reuleaux, A., Mosbech, A. & Frederiksen, M. (2013) "Sympatric Breeding Auks Shift between Dietary and
Spatial Resource Partitioning across the Annual Cycle" PLoS ONE 8(8): e72987
[notes]
http://dx.doi.org/10.1371/journal.pone.0072987
- McFarlane-Tranquilla, L.A., Montevecchi, W.A., Hedd, A., Fifield, D.A., Burke, C.M., Smith, P.A., Regular, P.M., Robertson, G.J., Gaston, A.J.
& Phillips, R.A. (2013) "Multiple-colony winter habitat use by murres Uria spp. in the Northwest Atlantic Ocean: implications for marine risk
assessment" Mar Ecol Prog Ser 472:287-303
[notes]
http://dx.doi.org/10.3354/meps10053
- Young, R.C., Kitaysky, A.S., Haussmann, M.F., Descamps, S., Orben, R.A.,
Elliott, K.H. & Gaston, A.J. (2013) "Age, Sex, and Telomere Dynamics in a
Long-Lived Seabird with Male-Biased Parental Care" PLoS ONE 8(9):e74931
[notes]
http://dx.doi.org/10.1371/journal.pone.0074931
- Zador, S., Hunt, G.L.Jr., TenBrink, T. & Aydin, K. (2013) "Combined seabird indices show lagged relationships between environmental conditions
and breeding activity" Mar Ecol Prog Ser 485:245-258
[notes]
http://dx.doi.org/10.3354/meps10336
- Elliott, K.H., McFarlane-Tranquilla, L., Burke, C.M., Hedd, A., Montevecchi, W.A. & Anderson, W.G. (2012) "Year-long deployments of small
geolocators increase corticosterone levels in murres" Mar Ecol Prog Ser 466:1-7
[notes]
http://dx.doi.org/10.3354/meps09975 Open Access
- Benoit-Bird, K.J., Kuletz, K., Heppell, S., Jones, N. & Hoover, B. (2011) "Active
acoustic examination of the diving behavior of murres foraging on patchy prey"
Mar Ecol Prog Ser 443:217-235
[notes]
http://dx.doi.org/10.3354/meps09408
- Gaston, A.J. & Robertson, G.J. (2010) "Trends in the harvest of
Brünnich's guillemots Uria lomvia in Newfoundland: effects of regulatory
changes and winter sea ice conditions" Wildl. Biol. 16:47-55
http://dx.doi.org/10.2981/09-020
- Elliott, K.H., Woo, K.J., Gaston, A.J., Benvenuti, S., Dall'Antonia, L. &
Davoren, G.K. (2009) "Central-Place Foraging in an Arctic Seabird Provides
Evidence for Storer-Ashmole's Halo" The Auk 126(3):613-625
[notes]
http://dx.doi.org/10.1525/auk.2009.08245
- E l l i o t t, K. H. , J a c o b s, S .R ., R i n g r o s e , J. , G a s t o n, A. J. &
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